# Delay techniques ### VFR Holding Air Traffic Control (ATC) may require VFR aircraft to **hold over a specific area** due to congestion or sequencing issues. The term **"ORBIT"** is used to instruct aircraft to circle a designated point until further notice. Pilots must remain in the orbit until cleared to continue. ##### ATC Holding Instructions Format: > **\[Aircraft Call Sign\], ORBIT \[Direction\] OF \[Location\], \[Turn Direction\], \[Expected Duration/Number of Orbits\].** Example: > Cessna 45X, ORBIT EAST OF CITY BRIDGE, LEFT TURNS, EXPECT FURTHER INSTRUCTIONS IN 5 MINUTES. In this case, the aircraft must maintain left turns east of the **City Bridge** until ATC provides further instructions.
**ATC Holding Instructions****English****French**
N123X, orbit left.Orbit left.Orbitez à gauche.
N123X, orbit abeam threshold.Orbit abeam threshold.Orbitez au seuil de piste.
N123X, make a right 360.Make a right three-sixty.Effectuez un trois-six zéro à droite.
### Remaining Outside Controlled Airspace Before entering **Class D airspace**, VFR aircraft must establish communication with ATC. Due to traffic congestion, ATC may instruct the pilot to remain **outside the controlled airspace** until further notice. ##### ATC Instruction Example: > \[Aircraft Call Sign\], REMAIN OUTSIDE CLASS D AIRSPACE, STANDBY. Example: > Skyhawk 82B, REMAIN OUTSIDE CLASS D AIRSPACE, STANDBY. The pilot must remain clear of Class D airspace and await further instructions from ATC.
**ATC Instruction****English****French**
Remain outside Class D airspace.Remain outside Class D airspace.Restez en dehors de l’espace aérien de classe D.
### Delaying Techniques for VFR Aircraft VFR aircraft generally operate at **lower speeds** compared to commercial traffic. To ensure efficient traffic flow, ATC may need to **create adequate spacing** between VFR and IFR arrivals. A **gap of 7 to 9 NM** is typically required between a slow VFR aircraft and faster IFR traffic on approach. To optimize sequencing and minimize delays, ATC can employ several delaying techniques. #### Orbits (360-Degree Turns) Orbits are used to **keep VFR traffic within a confined area** while awaiting clearance to continue. These are particularly useful when delaying traffic near the airport without significantly affecting approach sequencing. - A standard **360-degree turn** takes approximately **2 minutes** at a standard rate of **3° per second**.
**Orbit Instructions****English****French**
N123X, orbit left.Orbit left.Orbitez à gauche.
N123X, orbit abeam threshold.Orbit abeam threshold.Orbitez au seuil de piste.
N123X, make a right 360.Make a right three-sixty.Effectuez un trois-six zéro à droite.
#### Landing Sequence If multiple aircraft are approaching the airfield, ATC may issue **landing sequence instructions** to VFR aircraft. The pilot is assigned a position in sequence and is responsible for maintaining safe spacing from the preceding aircraft.
**Landing Sequence Instructions****English****French**
N567P, number two, follow Boeing 737, 4 NM final, report traffic in sight.Number two, follow Boeing 737, 4 NM final, report traffic in sight.Numéro deux, suivez le Boeing 737, finale 4 NM, signalez le trafic en vue.
N432B, number three, follow Cessna 172 on downwind.Number three, follow Cessna 172 on downwind.Numéro trois, suivez le Cessna 172 en vent arrière.
#### Extended Downwind Extending downwind is another delaying technique where a VFR aircraft remains on **downwind leg** longer than usual before turning onto base and final approach. - **This technique is useful for spacing VFR aircraft between IFR arrivals.** - **A longer downwind leg requires larger gaps between IFR traffic.**
**Extended Downwind Instructions****English****French**
N123B, extend downwind.Extend downwind.Prolongez vent arrière.
N567X, extend downwind, I will call your base.Extend downwind, I will call your base.Prolongez vent arrière, j’appellerai votre base.
### Summary of ATC Delaying Techniques
**Technique****Purpose****Example Instruction (English/French)**
**Orbits**Keep VFR traffic within a defined area.*Cessna 34X, ORBIT RIGHT OVER HILLTOP.* / *Cessna 34X, ORBITEZ À DROITE AU-DESSUS DE LA COLLINE.*
**Landing Sequence**Assign landing order and spacing.*Cessna 34X, NUMBER TWO, FOLLOW 737, REPORT TRAFFIC IN SIGHT.* / *Cessna 34X, NUMÉRO DEUX, SUIVEZ 737, SIGNALEZ LE TRAFIC EN VUE.*
**Extended Downwind**Delay VFR approach by increasing downwind length.*Cessna 34X, EXTEND DOWNWIND, I WILL CALL YOUR BASE.* / *Cessna 34X, PROLONGEZ VENT ARRIÈRE, J’APPELLERAI VOTRE BASE.*